WOODWARD | 5448-893 | SPM-D Synchronizer Module

Description

📊 Product Technical Parameters

• Brand: WOODWARD
• Model: 5448-893 (SPM-D)
• Series: SPM-D Digital Synchronizer Series
• Product Name: Microprocessor-Based Digital Synchronizer Module
• Country of Origin: USA
• Condition Status: Industrial Factory Original / Brand New In-Stock
• Dimensions: 144 mm x 72 mm x 122 mm (APRANORM DIN 43700 housing format)
• Weight: Approximately 0.8 kg (1.8 lbs)
• Original Region: United States
• Power Supply / Rating: 24 VDC nominal (18 to 32 VDC operating range), power consumption < 0.15 VA

⚙️ Operation Specifications and Usage Methods

• Installation Preparation: Ensure all power sources to the generator control switchgear are completely locked out. Mount the unit securely into a panel cutout (138 mm x 67 mm) using the standard DIN enclosure, ensuring proper IP54 protection sealing on the front face.
• Parameter Configuration: Connect via the front communication interface using Woodward ToolKit service software to configure system voltage, frequency limits, analog bias parameters, and optional failure/protection settings.
• Operational Control: Monitor real-time synchronization through the integrated LED synchroscope display while the unit delivers precise analog or PWM bias signals to match generator frequency, phase, and voltage with the busbar.

⚡ Startup and Shutdown Sequence

• Startup Sequence:
  1. Verify all terminal wiring for the 3-phase AC generator inputs, busbar potential transformers, and control power lines.
  2. Energize the 24 VDC control power supply and verify that the module initializes successfully without error codes.
  3. Start the prime mover and bring the generator up to rated operating speed and nominal voltage.
  4. Engage the SPM-D synchronization mode to allow automated phase and frequency matching, followed by automatic breaker closure upon parameter alignment.
• Shutdown Sequence:
  1. Transfer active electrical load away from the synchronized generator using manual or automated base load reduction.
  2. Open the generator output circuit breaker to isolate the unit from the shared electrical bus.
  3. Shut down the prime mover engine or turbine according to standard operational safety procedures.
  4. De-energize the 24 VDC control power supply and measuring input lines once the system is fully offline.

💡 Product Description

The Woodward 5448-893 is an advanced microprocessor-based SPM-D digital synchronizer designed for 3-phase AC generator systems equipped with compatible speed controls and automatic voltage regulators (AVRs). It features high-precision analog bias outputs, true RMS voltage sensing, an intuitive LED synchroscope, and support for optional mains failure recognition and generator protection features.

❓ Frequently Asked Questions (Q&A)

• Q: What type of output bias signals does the 5448-893 model use?
  • A: It utilizes analog bias output signals (such as pulse-width modulated waves and configurable DC voltage/current ranges) to govern speed and voltage matching.
• Q: Does this model support generator protection functions?
  • A: Yes, it can support optional mains failure recognition and generator protection features when configured with the appropriate monitoring parameters and current transformer inputs.
• Q: What frequency range is the unit rated to measure?
  • A: It is rated for an input measuring frequency range of 40 to 70 Hz.